PDPBSV(3)     ScaLAPACK routine of NEC Numeric Library Collection    PDPBSV(3)



NAME
       PDPBSV  -  solve  a system of linear equations  A(1:N, JA:JA+N-1) * X =
       B(IB:IB+N-1, 1:NRHS)

SYNOPSIS
       SUBROUTINE PDPBSV( UPLO, N, BW, NRHS, A, JA, DESCA, B, IB, DESCB, WORK,
                          LWORK, INFO )

           CHARACTER      UPLO

           INTEGER        BW, IB, INFO, JA, LWORK, N, NRHS

           INTEGER        DESCA( * ), DESCB( * )

           DOUBLE         PRECISION A( * ), B( * ), WORK( * )

PURPOSE
       PDPBSV  solves  a  system  of  linear equations A(1:N, JA:JA+N-1) * X =
       B(IB:IB+N-1, 1:NRHS) where A(1:N, JA:JA+N-1) is an N-by-N real
       banded symmetric positive definite distributed
       matrix with bandwidth BW.

       Cholesky factorization is used to factor a reordering of
       the matrix into L L'.

       See PDPBTRF and PDPBTRS for details.




ScaLAPACK routine               31 October 2017                      PDPBSV(3)